SAFEGAUGE SOLUTIONS FROM BOOYCO ELECTRONICS ENHANCE SAFETY FOR HEAVY EQUIPMENT OPERATORS

The strategic partnership between Booyco Electronics, a leader in proximity detection systems and safety solutions, and SafeGauge offers owners and operators of large mining, construction, forestry, agriculture and earthmoving equipment access to advanced wireless diagnostic tools designed to enhance safety and operational efficiency.

SafeGauge technology is renowned for enabling remote monitoring and testing of critical systems on heavy machinery without exposing workers to the dangerous conditions typically associated with live testing and equipment maintenance. Louis Venter, Area Sales Manager at Booyco Electronics, says that by allowing artisans to conduct tests and gather real-time data remotely, SafeGauge eliminates the need for workers to be in close proximity (line of fire) to large machines during potentially hazardous procedures. This innovation significantly reduces the risk of injury, creating a safer work environment across operations.

The SafeGauge range of equipment includes various specialised tools designed for different measurement needs. The PT (Pressure Transducer) Series is used to measure pressures in hydraulic and pneumatic systems, while the DI (Dial Indicator) Series is designed for measuring clearance, tolerance and wear on machine components. The TM (Tacho Meter) Series measures fan speeds and other rotating components, the LD (Laser Displacement) Series tracks wear on moving parts and the PR (Push Rod) Series is used to measure displacement between two fixed points.

Venter explains that all data collected by these tools can be processed through the Multitool Pro, which allows for real-time generation of reports and graphs. “With its built-in cloud connectivity, the system makes it easy to export or share data instantly, streamlining operations and improving decision-making efficiency,” he adds. 

Key Advantages for Equipment Owners

Venter says that one of the most prominent benefits of SafeGauge equipment is the enhancement of artisan safety. “Heavy-duty machinery in the mining and construction industries can present significant risks during maintenance or diagnostic processes, particularly when it involves hydraulic systems or high-pressure environments,” he continues. “SafeGauge’s wireless system allows these tasks to be performed without workers needing to be near the equipment, mitigating the danger of exposure to moving parts or sudden pressure releases.”

In addition to safety improvements, SafeGauge contributes to increased operational efficiency. By enabling real-time monitoring and remote diagnostics, equipment issues can be identified and addressed faster, reducing unplanned downtime and preventing costly failures. This proactive maintenance approach not only keeps operations running smoothly but also extends the life of key machinery components, minimising the need for expensive replacements.

A Valuable Solution for Heavy Equipment Operations

“For businesses in mining, construction, forestry, agriculture and earthmoving, where operational continuity is crucial, SafeGauge’s ability to deliver timely diagnostics and maintenance insights is invaluable. It allows maintenance teams to perform their duties more effectively, ensuring equipment remains in optimal condition,” Venter says. “The result is higher productivity and lower maintenance costs, adding value to both day-to-day operations and long-term capital investment.”

“Through Booyco Electronics’ distribution of SafeGauge in Southern Africa, local operations now have access to this world class safety and efficiency solution, helping companies meet stringent safety standards and drive operational excellence in even the most demanding environments,” Venter concludes.

GRINDEX BRAVO 500 PUMP PROVIDES ROBUST SOLUTION FOR GOLD MINING REPROCESSING

In a strategic move to optimise resource recovery, a South African gold mining operation successfully deployed Grindex Bravo 500 slurry pumps from Integrated Pump Technology to reprocess slurry from its surface return water dam. This dam, which has been used for process water storage over the past 12 years, was identified as a valuable source of gold-bearing slurry. The operation aimed to transfer this slurry back to the gold processing plant, and the Grindex Bravo 500 pumps proved to be the most appropriate solution for this task.

JD Nel, Key Accounts Manager at Integrated Pump Technology, explains that the return water dam was a crucial gold resource needed for production while underground maintenance, which temporarily halted recovery from an underground section, was underway. The return water dam resource was used to sustain gold production for the plant’s needs, but did present a challenge due to the extremely dense slurry, with a specific gravity (SG) of 1.38, which had to be pumped. 

Nel says that while it was not necessary to modify the existing process plant, as the material fed from the thickeners had a similar SG, it was important that the pumps selected would perform reliably within the application parameters. 

“Following a full assessment of the site conditions and application, we had no reservations is specifying the Grindex Bravo 500 as we knew this centrifugal pump could withstand the density of the material, but still transfer it at the required flow rate,” Nel explains. “The Grindex Bravo 500 is engineered for heavy-duty applications and its components, especially the impeller and liner, are designed to withstand the abrasive nature of dense slurries.” 

One of the critical factors in the success of this project was the impressive flow rate and reliability of the Grindex Bravo 500 slurry pumps. In this application, material is being transferred at a flow rate of 480 m3/h at a head of 18 metres. In total, three Grindex Bravo 500 pumps were employed, demonstrating their capability to handle the demanding requirements of this gold mining reprocessing effort.

Nel says the Grindex Bravo 500 is designed to handle high head pressures which is crucial for transporting dense slurries over long distances or vertical lifts. The pump’s ability to maintain consistent pressure helps in effectively moving heavy slurries through the system.

“Further,” he says, “the pump features a robust impeller designed to handle the high density and viscous nature of the gold slurry. The impeller’s design ensures efficient movement of the slurry, significantly reducing the risk of blockages and ensuring smooth operation.” 

Commenting on the construction of the pump, he says the overall design of the Grindex Bravo 500 includes heavy-duty bearings and a robust shaft to handle the stresses associated with pumping dense slurries. In addition, the pump’s design helps in minimising the risk of cavitation, a phenomenon that can be problematic when pumping slurries with high densities.

A Grindex Bravo 500 was deployed to pump clean water from the return water dam to the plant where this is being used to wash any material back into the system. 

“The deployment of the Grindex Bravo 500 slurry pumps underscores their robustness and effectiveness in handling high density slurries in mining applications,” Nel says. “This solution not only facilitates the reprocessing of valuable slurry but also highlights the operational efficiency and reliability that Grindex pumps bring to the mining industry.”

MINIMAL MAINTENANCE FOR DRY-TYPE TRANSFORMERS

With minimal levels of maintenance needed, dry-type transformers offer reliable performance over lengthy lifespans, with few of the risks and hazards associated with oil cooled transformers. 

According to David Claassen, Managing Director of dry-type transformer specialist Trafo Power Solutions, the fact that these units are air cooled means much of the limited servicing required relates involves maintaining clear air channels, which can be compromised by the accumulation of dust layers.

“To allow for the transformer to cool effectively, it is important to regularly check that there is not an excessive build-up of dust on or around the transformer,” Claassen explains. “Depending on the ambient conditions, dust can build up in these confined spaces and start to impede the free flow of air.”

Dust accumulation can be easily addressed by using a leaf blower or similar appliance to remove the dust from the transformer. This method quickly disperses the dust, leaving the surfaces clean and allowing for more efficient heat transfer. 

He highlights that a regular maintenance schedule is especially vital in applications such as coal mines, where there are often high dust levels. Where dust layers prevent adequate cooling, the transformer could run at temperatures higher than its design parameters. This, in turn, degrades the insulation material faster and could significantly reduce the unit’s lifespan. Even in the event that a completely sealed enclosure is used (≥ IP55), it is possible for dust to enter the enclosure while the doors are opened or in cases where the doors are left open accidently. 

“It is also important to check that the temperature probes are measuring accurately,” he notes. “This, of course, ensures that any unexpected temperature rise will trigger the necessary alarm, and that the feed-in circuit breaker to the transformer is tripped in the event of overheating.”

Terminals on the transformer should be checked, as it is possible for these connections to loosen due to vibrations or other factors. This is a simple process of checking the torque on these connection points, as any looseness could lead to partial discharge, heat build-up and further damage.

To guide the customer in their maintenance planning, Trafo Power Solutions provides a maintenance manual with each installation. This details the required frequency of service interventions, which in a clean indoor environment is usually only once a year. Under dusty conditions that might be encountered outdoors, the maintenance should normally be conducted every six months.

“Beyond our standard requirements, we also provide our customers with site-specific servicing guidelines that suit their application and environment,” says Claassen. “Indeed, we can provide the actual maintenance service should the customer require – ensuring that they have access to a detailed log of results and recommended interventions.”

He explains that, while the maintenance tasks are generally straightforward, the transformer does need to be de-energised by a qualified technician before this work is conducted. This ensures the necessary compliance to regulations relating to medium voltage equipment, including procedures for lock-out and isolation. 

“A key advantage of dry-type transformers is that this maintenance is relatively quick and simple compared to oil cooled transformers,” he notes. “A key difference in the servicing of these two technologies is that conventional oil cooled transformers require oil samples to be regularly taken and sent away for testing and analysis. This is a costly and time consuming addition to their total cost of ownership.”

CONSERVING WATER PART OF DE BEERS RESPONSIBLE STEWARDSHIP

De Beers’ mining operations have long pursued water conservation as a critical priority, one that also finds expression in the company’s broader environmental initiatives and its community engagement. 

This multifaceted approach includes applying innovative technologies to significantly reduce the volume of fresh water consumed by diamond mining and processing. Sophisticated filtration systems allow De Beers to purify and reuse water, so that it can be recycled within operations – while meticulous monitoring of water usage minimises water wastage.

Responsible water management also means considering other stakeholders in the catchment, so the company collaborates with local communities and governments to ensure that its water use does not negatively impact local water resources. Through partnerships and educational initiatives, De Beers promotes water conservation awareness and practices beyond its own operations.

In an initiative last year, the company partnered with EHA Group JV Hlengani Business Enterprise to complete the Alldays Municipality Water Infrastructure Refurbishment Project in Limpopo province. This focused on the repair and upgrading of existing water infrastructure, as well as the construction of a new supporting water storage tank. Collaborating closely with the community and local suppliers, the project has improved water access and reliability in Alldays, while empowering local stakeholders. The approach aligns with the De Beers Group’s commitment to responsible corporate citizenship by addressing essential community needs – giving back as much as possible to communities.

Water conservation is also central to De Beers’ environmental restoration projects – a key aspect of which is the enhancement of local water ecosystems. By rehabilitating natural water bodies and improving watershed management, the company contributes to the overall health and sustainability of the region’s water resources.

De Beers’ comprehensive approach to water conservation reflects its commitment to environmental stewardship and sustainable development. Through continuous innovation, responsible practices and community collaboration, De Beers aims to minimise its water footprint and support the wellbeing of ecosystems and communities where it operates.

CONCOR’S MASTERY IN FAST TRACK PROJECT IMPLEMENTATION UNDERSCORED BY SAFETY AWARD

Concor once again showcased its remarkable ability to execute complex, fast track projects with exceptional efficiency and safety during the construction of the new drop-off and pick-up facility, along with the reconfiguration of an underground parking area into a taxi holding facility at Menlyn Park Shopping Centre. The company was honoured by the Master Builders Association (MBA) North, winning in the regional category for projects under R15 million. The MBA North regional safety competition saw 67 entries, including 60 principal contractors and 7 sub-contractors.

Menlyn Park Shopping Centre, one of South Africa’s largest mega shopping centres, boasts a diverse array of over 500 shops, restaurants and entertainment facilities. The centre attracts a vast number of shoppers and visitors each month, necessitating a significant workforce to support its operations. While some commuters use personal vehicles, the majority rely on minibus taxis for transportation. To streamline this process and enhance the commuter experience, a Public-Private Partnership was established for the construction of the taxi holding facility.

Concor Contract Manager, Martin Muller explains that the company is known for managing high-pressure construction programmes effectively, and applied attention to planning underpinned by effective programme management to ensure every phase of the project dovetailed seamlessly, meeting tight deadlines without compromising quality or safety.

“Our ability to deliver projects on time, within budget and to the highest safety standards was evident throughout this project,” he says. The project, initiated in February 2024 and completed by April 2024, was delivered on time and within budget, ready for the official opening by the Tshwane mayor.

Despite the tight timeline, the project was executed without any incidents, a testament to the rigorous safety protocols implemented. The construction site, active within a live retail environment, required meticulous traffic management and pedestrian safety measures. A full-time safety officer ensured compliance with all safety procedures, leading to a Five Star safety rating from the Master Builders Association (MBA) North.

Another of Concor’s significant strengths lies in involving local SMMEs and individuals from the communities where it operates. On this project, Concor engaged with community representatives to source, vet and employ SMME subcontractors, offering opportunities in trades such as brickwork, plasterwork, painting, paving and plumbing.

Muller says that while the contract period was too short for a formal skills development programme, local labourers were given the chance to work on the project, gaining valuable experience and mentorship.

The drop-off and pick-up facility is strategically located on the northern side of the centre, accessible from Atterbury Road. This facility enhances the movement of taxis, allowing for safe drop-off and pick-up of passengers. Commuters benefit from a designated pedestrian walkway leading directly into the mall, which is both safer and sheltered from the elements.

The facility can accommodate around 40 taxis at any given time within its spacious footprint. The construction involved extensive groundwork, soil stabilisation, and paving to ensure durability under high traffic volumes. Security measures include fencing around the area and structural steel canopies with reinforced concrete foundations. The pedestrian walkways were also designed with aesthetic landscaping.

In addition to the primary logistical infrastructure, provisions were made for registered informal traders to set up kiosks, offering food and other goods in a secure and sanitary environment with shelter from inclimate weather. Nearby, 24/7 accessible ablution facilities ensure safe and hygienic conditions for commuters and taxi operators.

Muller explains that previously, taxis lined Lois Avenue on the eastern side of Menlyn Park Shopping Centre, creating hazardous conditions for both commuters and other vehicles. “The new facility alleviates these issues by providing a controlled environment for taxi operations and commuter safety.”

The taxi holding facility was integrated within the centre’s existing parking structure. It includes 165 parking bays, with 135 for standard minibus taxis and the remainder for larger long-distance minibuses. Access is controlled via license plate recognition, with separate entrances for short-distance and long-distance operators. The area is secured with fencing, and the parking layout was upgraded with energy-efficient LED lighting and clear demarcation of bays.

The holding facility also features utility areas, including a rest area with a kitchen, ablution facilities catering to disabled individuals and a wash bay. With a focus on the environment, sustainable design elements were incorporated such as sensor-based lighting and water-efficient fixtures to reduce resource consumption. The dedicated wash bay encourages water conservation among taxi operators while providing a suitable vehicle cleaning area.

As with all its contracts, Concor’s commitment to community upliftment extended beyond the project site with the company identifying needs within local communities. In this instance the company donated building materials to a nearby school for an upgrade project, collaborating with the professional team to support local education infrastructure.

“Concor’s successful execution of the Menlyn Taxi Integration Project underscores our capability in handling complex projects fast track projects with precision and excellence,” Muller says. “This project not only improved the commuter experience at Menlyn Park Shopping Centre but also, once again, showcased our dedication to quality, safety, and community engagement.”

WEG GEARED TO SERVICE THE DRC MINING SECTOR

For over 20 years, WEG has been a strategic supplier to the mining sector in the Democratic Republic of Congo. Its local South African manufacturing base has been central to reduced lead times, while a well-established distribution and service network has enhanced support capabilities and, ultimately, customer satisfaction.

With a total mineral wealth estimated in the tens of trillions of dollars, the DRC is one of the most strategic mining markets for WEG. Armed with a diverse scope of products including low and high voltage electric motors, low and high voltage drives, power and distribution transformers, gensets and energy solutions, low and medium voltage switchgear, motor control centres (MCCs) and E-houses, WEG has had a longstanding presence in the DRC mining market. Thierry Kakese, WEG’s regional manager – Central Africa, says the company operates through various links and channels in the DRC.

“When it comes to capital projects, we work directly with EPCM and project houses to ensure our products and solutions are specified. On the operational side, we do establish a direct link with end users, mostly via our in-country partners. Our local representation in the DRC comprises distribution and service channels,” explains Kakese.

Committed to the profitability of its customers, WEG continually invests in the development of innovative industrial electrical solutions. One of WEG’s flagship product lines in the DRC is its premium IE3 and IE4 motors. The energy saving benefits of WEG’s IE3 and IE4 motors have set them apart from competitors, addressing mines’ quests to reduce energy consumption and lower operating costs.

Much of the WEG equipment for the DRC is manufactured in South Africa. The low voltage (LV) and high voltage (HV) MCCs, transformers, gensets, MV soft starters, LV variable speed drives (VSDs) and soft starter panels are all manufactured in Johannesburg, while some of the gensets come from the company’s Cape Town facility. Given the importance of quality control in mining, these facilities are ISO 9001: 2015 certified and adhere to high quality procedures and standards. WEG also complies with the relevant International Electrotechnical Commission (IEC) standards for the various product groups.

The fact that manufacturing now takes place in Johannesburg, which is only 2 000 km away from most of the mining sites in the DRC, significantly shortens lead times compared to previously importing from WEG’s overseas factories in Europe, Asia or the Americas.

“To enable efficient delivery of products, we place value on proper planning and understanding all the logistical dynamics while the products are in transit, especially considering they have to pass through various border points. The target has always been to deliver timeously as per agreed timeframes with our customers despite border and road challenges,” says Kakese.

Delivering products and solutions in the DRC is not without its challenges, adds Kakese. The DRC probably has one of the most challenging transport infrastructure environments in Africa. In addition, most of the mines are located in remote areas, rendering road transportation difficult.

“To address this challenge, we have over the years bolstered our local representation with service and distribution partners who carry sufficient stockholding and are the first line of support for customers in the DRC. In fact, we have recently added IPS Congo to our Value Added Reseller (VAR) network. IPS Congo is strategically located in Kolwezi, where the majority of mines in the DRC are based. On the service side of our network, we have added Lekasi-based AEMI, which services our range of LV motors,” explains Kakese.

Another major challenge in the DRC is the lack of technical skills. To address this, WEG invests heavily in the development of its local partners through continuous training programmes. 

Commenting on some of the success stories in the DRC, Kakese points out that WEG’s MV VSDs and LV motors have, in the past decade, been specified for some of the major projects in the country. However, it is WEG’s involvement with a major copper project that he believes is a major reference point.

“We supplied and commissioned several of our products for Phase 1 and Phase 2 of this major copper project and we are currently completing Phase 3,” says Kakese. “In future, our plan is to gain more local presence in the DRC by establishing a strong sales and service network with the ability to support our entire product portfolio. These partners would be product- and area-focused to ensure our customers in the DRC experience the best possible support,” concludes Kakese.

VKB SELECTS SAFEGAUGE TO ENHANCE SAFETY AT REITZ OPERATIONS

The VKB Group, a leading agricultural enterprise, has taken a significant step in prioritising the safety of its service and maintenance teams by selecting SafeGauge, a wireless and digital measurement tool, for its service centre in Reitz. This decision underscores VKB’s commitment to adopting advanced technologies that protect its workforce while ensuring the smooth operation of its farming equipment. Significantly, the VKB Group is one of the prominent employers in rural Eastern Free State and its operations form the cornerstone of the rural economy in the region.

Supplied by Booyco Electronics, the official South African distributor, SafeGauge’s wireless monitoring solutions are designed to eliminate the need for technicians to work in close proximity to potentially dangerous equipment.

Louis Venter, Area Sales Manager at Booyco Electronics, says that by leveraging SafeGauge’s innovative wireless measurement tools, VKB’s service and maintenance teams can now measure hydraulic and pneumatic pressures as well as wear tolerances or alignment from a safe distance.

“Being able to do this is a gamechanger and minimises the risk of injury during routine maintenance or in situations where equipment failure could pose a hazard,” he explains. “The adoption of SafeGauge’s technology is particularly significant for VKB’s servicing operations in Reitz, where heavy machinery such as Case tractors and combine harvesters are routinely serviced and repaired. With the SafeGauge kit, technicians can perform necessary checks and measurements without coming into direct contact with the machinery, enhancing overall safety.”

Venter says that in addition to safety benefits, the implementation of SafeGauge will lead to improvements in operational efficiency. The wireless measurement tools enable faster and more accurate data collection, which reduces downtime and ensures that machinery is maintained at optimal performance levels. This aligns with VKB’s goals of maximising productivity and minimising the impact of equipment failure on its clients’ farming activities.

“By selecting SafeGauge, VKB is not only addressing immediate safety concerns but also future-proofing its service operations. The technology allows for seamless integration with digital platforms, paving the way for enhanced data analysis and predictive maintenance capabilities,” Venter says. “This proactive approach will help VKB to continue operating efficiently while maintaining a strong focus on the wellbeing of its employees.”

“The VKB Group’s decision to integrate SafeGauge’s wireless monitoring solutions into its service operations in Reitz is a testament to its dedication to both safety and efficiency, and we believe that as agricultural practices continue to evolve, VKB will remain at the forefront of adopting innovative technologies that protect its workforce and enhance productivity,” Venter concludes.

ADDING VALUE BEYOND EXECUTION FOR OPTIMAL MINING PROJECTS

While contractors are employed primarily to execute projects on behalf of mining companies and project houses, experienced underground mining specialists like Murray & Roberts Cementation also offer invaluable insights from earlier stages of development.

“Over the decades, we have found that our early engagement with clients provides many vital opportunities to optimise their ideas and plans,” says Graham Chamberlain, New Business Director at Murray & Roberts Cementation. “Especially in the shaft sinking phase – which is highly capital intensive – the devil is in the detail, and there are many aspects to consider when working to achieve a streamlined and cost effective process.”

Chamberlain highlights how the company is often engaged in the very early days of a project, to work with the client right from the concept and design phases. Often, third party consultants even use Murray & Roberts Cementation to conduct project designs, he says, as this creates a more seamless flow into the execution stage.

“Our approach is to work with the client on developing a range of options for each aspect of the project,” he explains. “This provides a broader scope of what is possible, with each option being discussed in the light of the client’s goals; these alternatives can be steadily whittled down to the two or three best, so that an intensive comparison can be conducted to make a final selection.”

A shaft design, for example, is a central factor in the successful performance of a mining operation – not just at its start but over its entire lifecycle. Whereas it may be considered feasible to reduce the diameter of shaft in the planning stage to reduce capital costs, a more farsighted view will expose the limitations that such a decision will create for the mine’s future.

“Technology in crushing, milling and processing is always evolving, and many mines can upgrade this infrastructure to generate more revenue,” he says. “However, such changes will be limited to 10 to 15% improvements if shaft capacity is at its limit. The shaft design therefore needs to accommodate the longer term goals of the mine – where market demand could allow throughput to grow in orders of magnitude.”

He emphasises the importance of understanding local conditions – both regulatory and physical – in managing risk on shaft sinking, development and contract mining projects. Where there are requirements for local procurement and hiring, for instance, the company has aligned its policies and developed extensive experience putting these into practice. These social and labour regulations, which are well established in South Africa, are also being applied across Africa and even in some South American countries.

Every project should be regarded as a ‘monument’ to the efforts of the developer, he explains, and therefore needs to leave a strong and positive legacy. This extends beyond the structural elements to the livelihoods, skills and prosperity of local communities. Murray & Roberts Cementation actively contributes to these developmental aspects, not least through its well-resourced training academy.

“Cost and productivity are key elements of success in our line of work, so risk needs to be carefully managed to produce the best outcome,” he says. “Many contractors operating globally in our field are not familiar with the unique requirements of the African market, and consequently, they often struggle to optimise cost and productivity factors in this region.”

Innovation also underpins the input that Murray & Roberts Cementation makes in planning for projects, Chamberlain continues. This is as much about developing new methodologies as it is about leaving others behind. Bold steps have been taken to find safer alternatives in equipment use; the cactus grab – historically a staple item on any shaft sinking site – is no longer employed, for instance.

“We adapted Canadian practices into a Murray & Roberts method of shaft sinking – using an understage-mounted excavator arm – to clean after blasts,” he says. “This is all part of a no-compromise approach to safety on our sites, which we share with clients as part of our initial discussions on scheduling, costs and productivity.”

A critical value-add from the company’s early engagement with clients is its extensive library or database of lessons learnt and technologies applied. This institutional knowledge, which dates back decades, can then be suitably ‘packaged’ by experienced practitioners who are experts in their field. He notes that one idea on its own is not going solve the various challenges that each project faces.

“Our work in the mining environment is complex, and must address matters from hoisting and logistics to safety factors and ground conditions,” he says. “The value of experience cannot be overstated, and requires careful consideration of all the options.”

PILOT CRUSHTEC LAUNCHES METSO HRC™ 8 CRUSHER

Latest from Pilot Crushtec International is the Metso HRC™ 8 high pressure grinding roll crusher for producing manufactured sand. In addition, the machine can also be deployed in the mining sector as a pre-grinder to help improve mill efficiency.

The demand for economical and efficient ways to produce crushed sand is growing, as natural sand deposits located near growth centres are being depleted and environmental regulations are becoming stricter. As a result, manufactured sand is becoming a high-demand material. The arrival of the Metso HRC™ 8 ushers in a new era for manufactured sand-makers.

The machine uses a method of inter-particle comminution by drawing in a bed of material between two rotating rollers. The rollers, one of which is in a fixed position and another one floating, generate an extremely high pressure, extruding the feed material down to the desired smaller grain sizes. 

“The HRC 8 is the ultimate solution to produce excellent quality sand that can substitute natural sand from natural deposits such as rivers. The quality of sand can be adjusted and optimised, thus reducing the amount of cement and asphalt required in concrete mixes or asphalt. The machine produces a gradation according to customer needs and delivers a perfect cubical shape for concrete and asphalt sands,” explains Oldemar Meneses, Product Manager, HRC Technology at Metso.

In addition, the HRC™ 8 can convert quarry waste into sellable product. The machine can reprocess non-sellable waste materials to correct the gradation curve and particle shape, converting them into high-value sellable products. This not only addresses the cost factor, but also speaks to the manufactured sand market’s drive for sustainable operation.

Not only is the machine suited for manufactured sand, but also for pre-milling applications across commodities such as chrome, lithium, gold, and copper, amongst others, says Francois Marais, Sales and Marketing Director at Pilot Crushtec.

“In mining, chrome and lithium will be the perfect applications for the HRC 8. In these commodities, sizing material down to a minus 5 mm size has traditionally been done with impactors. While the capital cost of using impact crushers seems lower, it is outweighed by the extremely high wear costs, especially when processing highly abrasive ores,” says Marais.

Both sand manufacturers and mines will benefit from the HRC™ 8’s increased throughput in a single pass, energy efficiency, reduced ultra fines and reduced operating costs as well as safety and ease of maintenance.

The HRC™ 8 provides a notable increase in  production efficiency. The flange design maximises the amount of material that is crushed by pulling the feed into the crushing zone. This method prevents the material passing the rollers and increases efficiency and throughput. The patented arch-frame, on the other hand, eliminates downtime caused by skewing.

The machine uses a combination of high pressure and a unique patented roller design to achieve a fine product with minimal energy input. In fact, the machine consumes up to 50% less power in sand production compared to other technologies for the same volume of net product.

“By reducing energy consumption and increasing wear life of components, the HRC 8 helps lower operational costs. Its efficient grinding mechanism also reduces the need for secondary crushing, further cutting down operational expenses,” concludes Meneses.

CONCOR BUILDS TO WORLD LEADERSHIP STANDARD AT PARKS BOULEVARD

Championing sustainability in the construction sector, Concor has completed another Green Star high achiever – 7 Parks Boulevard – in the Oxford Park precinct of Rosebank, Johannesburg.

Developed by Intaprop, this elegant office development has been awarded a 6 Star rating in terms of the Green Buildings Council South Africa’s Green Star rating. It has also earned a Net Zero level 1 certification recognised as ‘World Leadership’. It was scored high at 75 points, for its performance in a range of indices including indoor environmental quality, energy, transport, water, materials, land use, ecology, emissions and innovations.

Located on the corner of Parks Boulevard and Eastwood Road, 7 Parks Boulevard comprises four basement floors and four office floors with a gross floor area (GFA) of 8,149 m² and a total commercial office area of 5,988 m². Among the sustainable building features it boasts are access to external views and plenty of natural daylight – important environmental strategies to enhance the wellbeing of the building’s users.

Among Concor’s contributions to the Green Star rating were two main requirements that had to be met before the project commenced with demolition and construction: a Waste Management Plan (WMP) and an Environmental Management Plan (EMP).

Active steps were therefore taken to reduce waste to landfill during building operations, including a waste recycling storage area in the basement. This dedicated area met the Green Star sizing requirement, and accommodated paper, cardboard, plastic, glass, cans and metals.

Energy and water efficiency in 7 Parks Boulevard is enhanced through sub-metering of major energy and water-consuming systems, with water-efficient fittings being installed to limit occupant water usage. The building also minimises greenhouse gas emissions associated with operational energy consumption. To facilitate this, an energy model of the building was generated during the design stage, comparing the building to a SANS 10400 notional building model. This energy model helped to inform the building design, ensuring a high performance from a ‘building envelope’ perspective.

To reduce the carbon footprint, the building is equipped with solar panels with a capacity of 230 kWp – producing 387,000 kWh of energy annually and reducing its reliance on coal-generated electricity.

Modelling also enabled internal operative temperatures to be assessed to ensure a high level of thermal comfort; temperatures remain within the ASHRAE Standard 55-2004 Acceptability Limits for at least 98% of occupied hours. Building glazing performance modelling was also carried out, with performance values being agreed between the architect and mechanical engineer.

To further reduce energy consumption, provision has been made to ensure that all individual or enclosed spaces are individually switched with occupancy sensors. The project also saves energy by providing office lighting that is not over-designed, with an average maintained illuminance level of no more than 400 lux.

All selected gaseous and fire suppression systems, refrigerants and thermal insulants used for the development have an Ozone Depleting Potential (ODP) of zero; this eliminates any contributions to long-term damage to the earth’s stratospheric ozone layer.